I think it made things worse for me but honestly it could have happened in a regular school too. I went to a private school as well and preferred that.
I am a big perfectionist and over achiever and am really hard on myself when I don't do well. My entire family is made up of perfectionists and my parents especially are really in to doing well in school and being smart (a prime example of this is that this past semester I made the Dean's list at my college, I was the first of my sisters to do this and instead of saying good job my parents just asked why I hadn't made the list the semester before) I think being taught by my parents was just really hard because I always had to achieve what they wanted, and being in class with just my siblings added to the pressure because if they could do something my parents saw no reason why I couldn't do it. It definitely took a tole on my self esteem. Also being homeschooled I just always felt like I didn't fit in with the rest of the world, I was involved in a lot of activities and knew a lot of people but I always felt like I didn't fit in with them because they all went to school together and did all these school things I never did. In the area I lived in all the homeschoolers were very religious and conservative and my family was not like that so I never felt like I belonged with the homeschoolers either. I was always trying to fit in somewhere and I think this was the beginning of my eating disorder.

I agree though that it works really well for some people, My oldest sister was homeschooled all 12 years and enjoyed it and turned out fine. My brother went in to school in the 9th grade and it has been the best thing for him. My younger sister has made the decision to go in to school this year for the first time and we'll see how that goes. She has always enjoyed homeschooling though. I have talked to people who feel the way i do (including my twin sister) and I have talked to people who say they wouldn't change one thing about being homeschooled. So it does all depend. Thanks everyone for your replies!